/usr/share/doc/papi-examples/ctests/case2.c is in papi-examples 5.3.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 | /* From Dave McNamara at PSRV. Thanks! */
/* If an event is countable but you've exhausted the counter resources
and you try to add an event, it seems subsequent PAPI_start and/or
PAPI_stop will causes a Seg. Violation.
I got around this by calling PAPI to get the # of countable events,
then making sure that I didn't try to add more than these number of
events. I still have a problem if someone adds Level 2 cache misses
and then adds FLOPS 'cause I didn't count FLOPS as actually requiring
2 counters. */
#include "papi_test.h"
extern int TESTS_QUIET; /* Declared in test_utils.c */
int
main( int argc, char **argv )
{
double c, a = 0.999, b = 1.001;
int n = 1000;
int EventSet = PAPI_NULL;
int retval;
int j = 0, i;
long long g1[3];
tests_quiet( argc, argv ); /* Set TESTS_QUIET variable */
if ( ( retval =
PAPI_library_init( PAPI_VER_CURRENT ) ) != PAPI_VER_CURRENT )
test_fail( __FILE__, __LINE__, "PAPI_library_init", retval );
if ( ( retval = PAPI_create_eventset( &EventSet ) ) != PAPI_OK )
test_fail( __FILE__, __LINE__, "PAPI_create_eventset", retval );
if ( PAPI_query_event( PAPI_BR_CN ) == PAPI_OK )
j++;
if ( j == 1 &&
( retval = PAPI_add_event( EventSet, PAPI_BR_CN ) ) != PAPI_OK ) {
if ( retval != PAPI_ECNFLCT )
test_fail( __FILE__, __LINE__, "PAPI_add_event", retval );
}
i = j;
if ( PAPI_query_event( PAPI_TOT_CYC ) == PAPI_OK )
j++;
if ( j == ( i + 1 ) &&
( retval = PAPI_add_event( EventSet, PAPI_TOT_CYC ) ) != PAPI_OK ) {
if ( retval != PAPI_ECNFLCT )
test_fail( __FILE__, __LINE__, "PAPI_add_event", retval );
}
i = j;
if ( PAPI_query_event( PAPI_TOT_INS ) == PAPI_OK )
j++;
if ( j == ( i + 1 ) &&
( retval = PAPI_add_event( EventSet, PAPI_TOT_INS ) ) != PAPI_OK ) {
if ( retval != PAPI_ECNFLCT )
test_fail( __FILE__, __LINE__, "PAPI_add_event", retval );
}
if ( j ) {
if ( ( retval = PAPI_start( EventSet ) ) != PAPI_OK )
test_fail( __FILE__, __LINE__, "PAPI_start", retval );
for ( i = 0; i < n; i++ ) {
c = a * b;
}
if (!TESTS_QUIET) fprintf(stdout,"c=%lf\n",c);
if ( ( retval = PAPI_stop( EventSet, g1 ) ) != PAPI_OK )
test_fail( __FILE__, __LINE__, "PAPI_stop", retval );
}
test_pass( __FILE__, NULL, 0 );
exit( 1 );
}
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